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Author Question: The most harmful radiations are those that A) kill living cells. B) damage living cells. C) ... (Read 83 times)

melina_rosy

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on: Jul 29, 2018
The most harmful radiations are those that
 
  A) kill living cells.
  B) damage living cells.
  C) don't encounter cells.

Question 2

Cosmic rays originate in the
 
  A) Earth's interior.
  B) Earth's upper atmosphere.
  C) Sun.
  D) cosmos.
  E) none of the above


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Sammyo

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


melina_rosy

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Reply 2 on: Jul 29, 2018
Excellent

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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